The most configurable IoT gateway

Extensible IoT gateway for Industry 4.0, smart city, e-metering, and agricultural applications. CHESTER connects sensors, actuators, PLC controllers, and other devices to the internet. Flexible power supply and LPWAN communication technologies enable reliable connectivity from distant and deep indoor places.

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Application elasticity

One modular device covering a wide spectrum of IoT projects

LPWAN connectivity

Communication to the internet from the most distant places

Low-power design

Reliable operation from a primary cell battery for several years

IP 67 protection level

Enclosure to withstand harsh environmental conditions

Bluetooth Low Energy

For diagnostics, parametrization, and device firmware upgrades

Custom branding

Full OEM branding service, including custom color printing

One modular device Wide range of IoT applications

CHESTER is used to data telemetry data of the connected systems, monitoring of a large variety of sensors, remote control and location tracking. The device features a robust, waterproof, IP67-rated enclosure for harsh environmental conditions. In addition, its wide operating temperature range and battery-optimized power consumption enable outdoor deployment.

Supported interfaces List of extensions

Reliable connectivity Data from distant and deep indoor places

CHESTER connects to the internet via LPWAN communication technologies (NB-IoT, LTE-M, and LoRaWAN are supported). Choose the built-in internal antenna or connect an external antenna for any of those options. For diagnostics, parametrization, and device firmware upgrades, CHESTER comes with a Bluetooth Low Energy interface available in modern smart devices and notebooks.

Designed from the ground up as a low‑power device

CHESTER has been designed from the ground up as a low-power device and provides years of operation from the primary lithium cells. Another way to power the device is to use a rechargeable battery backup module with the optional solar photovoltaic panel input. For applications where batteries are not applicable, it is possible to energize the device from a standard 24 V DC line power or 230 V AC line.

Primary lithium cells

Rechargable batteries

Photovoltaic solar panels

24 V DC
or 230 V AC

industries and use cases

Use cases

  • Machine monitoring
  • Predictive maintenance
  • Event alerting
  • Smart metering
  • Sensor telemetry
  • Asset tracking
  • Air quality sensing
  • Remote control
  • Data logging


  • Manufacturing
  • Facility Management
  • Construction
  • Agriculture
  • Forestry
  • Energy
  • Security
  • Health care
  • Mining

Let's sum it up.
What the most configurable means

LPWAN connectivity

NB-IoT and LTE-M (Cat M1) with global bands support

SIM card for LTE as a SIM chip (eSIM) or Nano-SIM

LoRaWAN with support for 868/915 MHz

Dynamic antenna system

Software selection between internal and external antenna

Software selection between LTE and LoRaWAN path

External antenna connects via u.FL connector

Bluetooth Low Energy 5.0

Device setup and diagnostics from smartphone

Communication with other BLE devices

Device firmware upgrades in the field

GNSS positioning module

Support for GPS, Galileo, GLONASS

High-sensitivity receiver chipset u-blox M8

Flexible power control for low-power tracking

Flexible power management

Power device from a replaceable primary 3.6 V Lithium cell

Rechargeable battery from CHESTER-Z top-cover module

External power delivered via extension modules

Onboard 3-axis MEMS accelerometer

Detection of device orientation and tilt event

Recognition of device vibration

Possibility to configure dynamic range and sensitivity

Two slots for extension modules

Supports combinations of modules for various project needs

Signals are routed to terminal blocks for full flexibility

Soldered from the bottom side for enhanced reliability

Push-in style terminal blocks

Interface to various external I/O or power sources

All terminals feature a transient voltage protection

Parallel terminal blocks for convenient wiring

Integrated 1-Wire bus interface

Support for multiple DS18B20 thermometers

Integration with HARDWARIO Machine Probe

Integration with HARDWARIO Soil Sensor

Other integrated peripherals

8 MB flash memory for data logging

Accurate digital temperature sensor

3-color LED for instant state recognition

Additional available interfaces

I2C communication bus on a terminal block and a connector

Optional external LED, push button, and tamper switch on a connector

System connector with I2C bus and power sink/source

Optional external battery pack on a connector

Two Sparkfun QWIIC connectors for a variety of 3rd party accessories

Peripherals - sensors, actors, devices

Temperature sensors

  • Digital 1-Wire
  • Pt100
  • Pt1000

Proximity sensors

  • Inductive
  • Capacitive
  • Optical
  • Magnetic

Linear sensors

  • Flow
  • Pressure
  • Weight
  • Distance
  • Current
  • Voltage

Air quality

  • Temperature
  • Dust particles
  • Carbon dioxide

Water quality

  • Conductivity
  • PH level
  • Oxygen
  • Temperature

Soil parameters

  • Temperature
  • Moisture

Location sensors

  • Position (GNSS)
  • Orientation

Event detectors

  • Motion (PIR)
  • Push button
  • Shock and tilt
  • Dendrometers

Open SDK for rapid firmware development

Build your own application on top of nRF Connect SDK with the underlying Zephyr OS. With embedded C as a primary programming language and support for Visual Studio Code as the development IDE you can use Windows, macOS or Linux development environments.

HARDWARIO Cloud Easy integration with any system

Seamless management of your devices, user-defined Callbacks and REST API. Integration of CHESTER with Microsoft, Ubidots, Blynk or your own system is secure, fast and easy.

More about HARDWARIO Cloud REST API documentation


Choose one of the catalog applications for immediate deployment, or contact us with your specific needs. Get in touch with us to learn more and build IoT projects for your customers today, together.

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Operating input voltage 3.6 V Humidity sensor accuracy ±3%
Idle power consumption < 150 μA Operating temperature range -40 to +70 °C
Peak power consumption 500 mA Storage temperature range -40 to +85 °C
Battery capacity 7700 mAh Protection level IP67
Thermometer accuracy ± 0.3 °C

Vlastní integrace a branding na přání zákazníka

Prodloužená tříletá záruka a 100denní zkušební doba

Osobní technická podpora během célého projektu